the problem is thats not a picture
its a file containing a picture
what you wanna do is
1. download the PICTURE not the document (or you can screenshot it and crop it)
2. go to your profile and find your images tab
3. make a new folder in your images tab
4. add a new picture
5. find that picture in your files and choose it
6. right click on the picture in you images and copy the link
7. use that link for the image